cofactor.
A contributing factor.
Meaning & usage
A contributing factor.
A substance, especially a coenzyme or a metal, that must be present for an enzyme to function.
A molecule that binds to and regulates the activity of a protein.
The result of a number being divided by one of its factors.
The signed determinant of the submatrix produced by removing the row and column containing a specified element; primarily used in the recursive definition and calculation of the determinant of a matrix.
Where this word comes from
Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Latin co-lbor. English co- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰeh₁k- Proto-Indo-European *-yéti Proto-Indo-European *dʰh₁kyéti Proto-Italic *θakjō Proto-Italic *fakjō Latin faciō Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -tor Latin factorbor. Middle French facteurbor. ▲ Latin factorbor. Anglo-Norman factourbor. Middle English factour English factor English cofactor From co- + factor.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.